AMD SB800 PDF

AMD Southbridge SB chips to include built-in Serial ATA 3 support. AMD’s SBseries fan speed controller exposed. Options aplenty make this motherboard reviewer swoon by Geoff Gasior — AM on. I’ve been a big fan, pun intended, of fan control options in the BIOS. Some motherboards have real basic functionality while some of have been excellent.

In fact, I’d wager that most of us would happily trade the ability to tweak obscure memory timings and system voltages for such robust fan control functionality. Neutronbeam Besides money, let us know Seth what WE can do to help out–there’s a lot of sma Combine the two, and you have a non-linear approach that’s really more multi-linear. The microcontroller can manage fan speeds using three algorithms: On the overclocking front, we’ve long passed the point of diminishing returns.

AMD chipset series. They’ve come a long way in that time, adding integrated flashing utilities, support for multiple configuration profiles, and, of course, the ability to tweak a staggering array of memory timings, clock speeds, and voltages. All this functionality is offered for free in every SBseries south bridge, with no additional hardware required. Each one can have its own profile, and 3- and 4-pin fans are supported across the board.

AMD’s SB Is a Completely New Southbridge

MSI’s fan speed controls remain limited but continue to offer ams least some tuning options, while Gigabyte’s are still shockingly nonexistent. The fan speed sv800 available in most modern BIOSes are basic at best and often laughably inadequate when compared to the frankly excessive overclocking options being offered. Steam names the best-selling games of Dual-sensor mode is designed primarily for motherboards with passively cooled north-bridge chips that rely on airflow generated by the CPU fan.

This page was last edited on 25 Septemberat I went off on a bit of a rant on the subject more than a year and a half ago, and little has changed since.

Props to Merrikh and AMD for incorporating such powerful fan control support in the south bridge, and shame on any smd maker that leaves this particular feature untapped in favor of alternative fan control mechanisms that offer less, well, control.

While in the same internal event mentioned above, AMD gave a preview on the features of the SB8xx family of southbridges, as follows: Of the big three, only Asus has made real progress in improving BIOS-level fan speed controls, and it still has a long way to go to match what now-defunct mobo maker Abit was doing more than seven years ago. From Wikipedia, the free encyclopedia.

AMD’s Ali Akbar Merrikh, the man who designed the fan speed controls and patiently answered my questions about them, isn’t aware of sn800 motherboard that exploits the SB’s fancy fan controller outside the company’s own boards and reference designs, none of which are available to consumers.

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Motherboard manufacturers typically rely on SuperIO chips or other auxiliary silicon to adjust fan speeds based on system temperatures. That’s a travesty, because this bs800 exactly the sort of fan speed control that I’m sure many an enthusiast would love to have in his motherboard’s BIOS. Advanced Micro Devices chipsets.

Big news, no news, and future news. The Tech Report System Guide: I couldn’t not graph them. In addition to the three algorithms that determine how fan speeds respond to temperature changes, the SB series is governed by single- and dual-sensor policies that dictate how temperatures are interpreted.

Customize The Tech Report Merry Christmas from The Tech Report staff! AMD does not provide any SB8x0 errata publicly. Views Read Edit View history. By using this site, you agree to the Terms of Use and Privacy Policy. Few seem to have picked up on the fact that bs800 also want our rigs to be as quiet as possible, though.

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